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公开(公告)号：US10101220B2
公开(公告)日：2018-10-16
申请号：US14707183
申请日：2015-05-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Masamichi Ando , Hideki Kawamura
IPC: G01L1/16 , G06F3/041 , H01L41/113 , H01L41/193
Abstract: A displacement detection sensor has a plate member and piezoelectric sensors with a piezoelectric film of PLLA. The piezoelectric sensors are mounted on the face of the plate member on the opposite side of the operation surface thereof. Tensile stresses are generated in the entire face of the plate member at pressing the operation surface. The piezoelectric sensor is mounted so that the direction of macro tensile stress in the plate member in the region in which the piezoelectric sensor is mounted and molecular orientation direction of the piezoelectric film intersect each other at an angle of 45°. The piezoelectric sensor is mounted so that the direction of macro tensile stress in the plate member in the region in which the piezoelectric sensor is mounted and molecular orientation direction of the piezoelectric film intersect each other at an angle of approximately 45°.
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公开(公告)号：US20160169753A1
公开(公告)日：2016-06-16
申请号：US15052149
申请日：2016-02-24
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hideki Kawamura
IPC: G01L1/16
CPC classification number: G01L1/16 , C09J133/00 , C09J201/00
Abstract: A press detecting sensor that includes an operation receiving member and a piezoelectric sensor. The operation receiving member is a multilayer rigid plate including a cover glass, a touch sensor and a display panel fixed via first bonding agents. The piezoelectric sensor includes a piezoelectric film, a first detecting member on a surface at a side of the operation receiving member of the piezoelectric film, and a second detecting member on a surface at a side opposite to the operation receiving member. The first detecting member is bonded to the operation receiving member by an adhesive member, and is bonded to the piezoelectric film by a second bonding agent.
Abstract translation: 一种压力检测传感器，包括操作接收部件和压电传感器。 操作接收部件是包括通过第一接合剂固定的盖玻璃，触摸传感器和显示面板的多层刚性板。 压电传感器包括压电膜，在压电膜的操作接收构件的一侧的表面上的第一检测构件和在与操作接收构件相对的一侧的表面上的第二检测构件。 第一检测部件通过粘合部件接合到操作接收部件，并通过第二接合剂与压电膜接合。
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公开(公告)号：US20150192482A1
公开(公告)日：2015-07-09
申请号：US14596381
申请日：2015-01-14
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Keisuke Araki , Hideki Kawamura , Jun Endo
CPC classification number: G01L1/16 , G01L1/205 , G01L1/225 , G01L1/2287 , G01L5/0038
Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
Abstract translation: 一种按压力传感器，包括：构造有压电膜的传感器元件，与外部电路连接的引线端子，连接按压力检测电极的引线导体和引线端子;以及耐受回流焊温度的柔性印刷电路板 。 柔性印刷电路板具有形成在其第一主表面上的按压力检测电极，并且通过折叠线折叠，同时第一主表面向内。 传感器元件通过施加到面向外的第二主表面的压力而偏转，并且位于柔性印刷电路板的相对于折叠线的一侧的第一区域中，并且与按压力相对应的信号 因此从按压力检测电极中取出。
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公开(公告)号：US10037486B2
公开(公告)日：2018-07-31
申请号：US15665494
申请日：2017-08-01
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hideki Kawamura , Nobuhito Tsubaki
IPC: G06K19/07 , G06K19/073 , G06K19/077
CPC classification number: G06K19/07309 , G06K7/10009 , G06K19/07 , G06K19/0716 , G06K19/0723 , G06K19/0726 , G06K19/073 , G06K19/0772 , G06K19/07745 , G06K19/07775
Abstract: An RF system is provided that includes an RFID card and a reader-writer device. The RFID card includes a substrate, an RFIC element, an antenna coil, and a deformation sensor. The reader-writer device and the RFID card transmit and receive predetermined information between an antenna coil of the RFID card and an antenna coil of the reader-writer device through a magnetic field. The RFIC element transmits the first signal via the antenna coil when the deformation sensor does not detect bending deformation of the substrate, and the RFIC element transmits the second signal via the antenna coil when the deformation sensor detects the bending deformation of the substrate.
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公开(公告)号：US20170262066A1
公开(公告)日：2017-09-14
申请号：US15608233
申请日：2017-05-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hideki Kawamura , Nobuhito Tsubaki , Fumiya Isono , Takafumi Inoue , Takashi Kihara , Jun Endo , Masato Saito
CPC classification number: G06F3/02 , A44C5/0053 , G06F1/163 , G06F3/0414 , H01H3/02 , H01H13/04 , H01H2203/0085 , H01H2300/016 , H03K17/964
Abstract: An operation input device having an exterior portion that includes a band portion extending in a belt shape and having flexibility and a housing; and a control unit (23) that is housed in the exterior portion and performs input processing based on a detection signal indicating detection of a predetermined operation. The operation input device is provided with a deformation detection unit that outputs a detection signal associated with a deformation of the band portion or a deformation of the housing to the control unit.
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Patent Agency Ranking
公开(公告)号：US20170186939A1
公开(公告)日：2017-06-29
申请号：US15455655
申请日：2017-03-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Masamichi Ando , Hideki Kawamura
IPC: H01L41/113
CPC classification number: H01L41/1132 , G01B7/16 , G01D5/18 , G01L1/16 , H01L41/1134 , H01L41/193
Abstract: A displacement sensor having a rectangular shaped elastic member. A piezoelectric element is attached to a first main face of the elastic member. The piezoelectric element has a rectangular-shaped piezoelectric sheet and electrodes on both main faces of the piezoelectric sheet. The piezoelectric sheet is made of poly-L-lactic acid and is at least uniaxially-stretched. The piezoelectric element is attached so that the uniaxial-stretching direction of the piezoelectric sheet is 45° relative to a long-side direction of the elastic member. When the elastic member is bent along the long-side direction, the piezoelectric sheet is stretched along the long-side direction, and the piezoelectric element generates voltage of predetermined level.
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公开(公告)号：US20150135857A1
公开(公告)日：2015-05-21
申请号：US14603483
申请日：2015-01-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hideki Kawamura , Masamichi Ando
IPC: G01L1/22
Abstract: A pressing force sensor that includes an expandable and contractible film, pressing force detecting resistor membranes formed on a portion of a main surface of the film, and a support disposed along the main surface of the film. The support is provided with recesses or holes with openings located in areas where the pressing force detecting resistor membranes on the main surface of the film are located. In the pressing force sensor, when a pressing force is exerted on the main surface of the film, the film is expanded with a pressing force detecting resistor membrane. As a result, the pressing force detecting resistor membrane is deformed, and a change in resistance value of the pressing force detecting resistor membrane corresponding to the deformation is detected.
Abstract translation: 一种压力传感器，包括可膨胀和收缩的膜，形成在膜的主表面的一部分上的按压力检测电阻膜，以及沿着膜的主表面设置的支撑件。 支撑体设置有位于薄膜主表面上的按压力检测电阻器膜的区域中的开口的凹部或孔。 在按压力传感器中，当在膜的主表面上施加按压力时，用压力检测电阻膜扩张膜。 结果，按压力检测电阻膜变形，并且检测到与变形相对应的按压力检测电阻膜的电阻值的变化。
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公开(公告)号：US20150035411A1
公开(公告)日：2015-02-05
申请号：US14515881
申请日：2014-10-16
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Hideki Kawamura , Masamichi Ando
IPC: G01L1/16 , H01L41/053 , H01L41/113
CPC classification number: G01L1/16 , B82Y15/00 , H01L41/053 , H01L41/0533 , H01L41/1132 , H01L41/1138 , H01L41/193 , Y10S977/742 , Y10S977/762 , Y10S977/956
Abstract: A pressing force sensor that includes a flat membrane piezoelectric element and a support. The flat membrane piezoelectric element includes a piezoelectric sheet having a piezoelectric constant d14. A first electrode is formed on a first main surface of the piezoelectric sheet and a second electrode is formed on a second main surface thereof. Long directions of the first electrode and the second electrode and a uniaxial stretching direction of the piezoelectric sheet form an angle of 45°. An opening portion having an elliptical section is formed on the support. The flat membrane piezoelectric element abuts the opening portion of the support. The support and the flat membrane piezoelectric element are disposed such that the opening portion is included within an area of the second electrode.
Abstract translation: 一种压力传感器，包括平膜压电元件和支撑体。 平膜压电元件包括具有压电常数d14的压电片。 第一电极形成在压电片的第一主表面上，第二电极形成在第二主表面上。 第一电极和第二电极的长方向和压电片的单轴拉伸方向形成45°的角度。 具有椭圆形截面的开口部分形成在支撑件上。 平膜压电元件邻接支撑体的开口部。 支撑体和平膜压电元件被布置成使得开口部分包括在第二电极的区域内。
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公开(公告)号：US20140230573A1
公开(公告)日：2014-08-21
申请号：US14261862
申请日：2014-04-25
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Masamichi Ando , Hideki Kawamura
IPC: G01L1/16
Abstract: A displacement detection device includes a piezoelectric sensor. The piezoelectric sensor is provided with a piezoelectric sheet on both principal surfaces of which detection electrodes are formed. When stress is applied to the piezoelectric sensor, charge is generated, and an output voltage in accordance with this generated charge is detected in a DC voltage detector. A controller measures this output voltage at a predetermined time interval. Every time the controller measures the output voltage, the controller makes a short-circuit control of a switch, and causes the charge generated in the piezoelectric sensor to be released. The controller can thereby detect an amount of change in output voltage generated at the predetermined time interval in accordance with an amount of displacement of the piezoelectric sensor. By sequentially integrating this, the controller can accurately detect the amount of displacement of the piezoelectric sensor which changes across measurement timings.
Abstract translation: 位移检测装置包括压电传感器。 压电传感器在形成检测电极的两个主表面上设置有压电片。 当对压电传感器施加应力时，产生电荷，并且在直流电压检测器中检测到根据该产生的电荷的输出电压。 控制器以预定的时间间隔测量该输出电压。 每当控制器测量输出电压时，控制器对开关进行短路控制，并使压电传感器中产生的电荷释放。 因此，控制器可以根据压电传感器的位移量来检测在预定时间间隔产生的输出电压的变化量。 通过顺序整合，控制器可以精确检测在测量定时之间变化的压电传感器的位移量。
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公开(公告)号：US10175126B2
公开(公告)日：2019-01-08
申请号：US14870201
申请日：2015-09-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Keisuke Araki , Hideki Kawamura , Jun Endo
Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
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